6 January 2022
WordPress version 5.4.9 is now available.
Upgrading to WordPress 5.4.9
WordPress 5.4.9 can be upgraded to (or installed) using any of Installatron's products. Use Installatron's optional Automatic Update feature to automatically apply WordPress updates as new versions are released, or use Installatron's Clone feature to duplicate an existing WordPress install to test the 5.4.9 upgrade prior to applying it live. Get started managing your WordPress installations with Installatron
What's New in WordPress 5.4.9
- Props to Karim El Ouerghemmi and Simon Scannell of SonarSource for disclosing an issue with stored XSS through post slugs.
- Props to Simon Scannell of SonarSource for reporting an issue with Object injection in some multisite installations.
- Props to ngocnb and khuyenn from GiaoHangTietKiem JSC for working with Trend Micro Zero Day Initiative on reporting a SQL injection vulnerability in WP_Query.
- Props to Ben Bidner from the WordPress security team for reporting a SQL injection vulnerability in WP_Meta_Query (only relevant to versions 4.1-5.8).